Fergus Gill / 2020VISION / Yellowhammer (Emberiza citrinella) perched on snowy branch. Perthshire, Scotland, February. Did you know? Beethoven's pupil claimed that the famous 'fate motif' of his 5th Symphony was inspired by the...

Stephen Dalton / Close up of eye of Common green iguana (Iguana iguana)

Kim Taylor / Tokay gecko {Gecko gecko} eye showing pupil partially closed. Captive occurs Asia.

Chris Newbert / Blue Parrotfish (Scarus coeruleus) eye, Belize

Martin Dohrn / Lioness head portrait in moonlight Serengeti NP, Tanzania, East Africa. Note dilated pupils. Image taken using 'Starlight Camera' technology without artificial lighting.

Paul Bertner / Gecko (Gekkonidae), Udzungwa Mountains National Park, Tanzania

Paul Bertner / Eastern White-lipped Treefrog (Boophis albilabris) eye, Antananarivo, Madagascar

Wild Shots Outreach / Pupil Evelyn Lekanyane with DSLR camera during residential photography course organised by Wild Shots Outreach. Kruger National Park, South Africa, June 2017.

Wild Shots Outreach / Pupil Lebogang Sekgwari with DSLR camera during residential photography course organised by Wild Shots Outreach. Kruger National Park, South Africa, June 2017.

Wild Shots Outreach / Pupil Chris Mojela with DSLR camera during residential photography course organised by Wild Shots Outreach. Kruger National Park, South Africa, June 2017.

Wild Shots Outreach / Pupil Tharollo Shaai with DSLR camera during residential photography course organised by Wild Shots Outreach. Kruger National Park, South Africa, June 2017.

Wild Shots Outreach / Pupil with DSLR camera during residential photography course organised by Wild Shots Outreach. Kruger National Park, South Africa, June 2017.